import java.util.Scanner;

public class Judge3 {

	public static void main(String[] args) {
		Scanner s = new Scanner(System.in);

		for(;;) { 
			System.out.println("请输入一个字母");
			
			char alp = s.next().charAt(0);
			if(alp<65 || alp>122 || (alp>90 && alp<97)) {
				System.out.println("您输入的不是字母");
			}else {
				if(alp>=65 && alp<=90) {
					System.out.println("您输入的字母为大写");
					if( alp == 'A' || alp == 'O' || alp == 'E' || alp == 'I' || alp == 'U' || alp == 'V') {
						System.out.println("您输入的字母是韵母");
					}else {
						System.out.println("您输入的字母是声母");
					}
				}else {
					System.out.println("您输入的字母为小写");
					if( alp == 'a' || alp == 'o' || alp == 'e' || alp == 'i' || alp == 'u' || alp == 'v') {
						System.out.println("您输入的字母是韵母");
					}else {
						System.out.println("您输入的字母是声母");
					}
				}
			}
		}
	}

}
